Ammo box, definitely one of the best choices If you can get one in your area. Just don’t spend more than the cost of a small firesafe.
I miss the days when most batteries were very stable and safe, and there was very little in dangerous cheap cells, chargers, etc. available to the un-knowing average Joe. This is a double-wammy as its likely an un-tested & un-safe “bomb cell” plastic bag for charging unsafe bomb-batteries with un-safe bomb chargers.
I just read some information about ul tests which I found in a lg 18650D1 datasheet http://bbs.dianyuan.com/bbs/u/35/1131956666.pdf
Pretty tuff these 18650…
Interesting with the 4/3A thanks for sharing this info, never heard about it but there is also a Sanyo cell with 4AH in that format…maybe I will buy one to play with it if I find it anywhere with reasonable price.